package com.itheima.service.impl;

import com.itheima.mapper.EmpMapper;
import com.itheima.mapper.StudentMapper;
import com.itheima.pojo.JobOption;
import com.itheima.pojo.StudentCountData;
import com.itheima.pojo.StudentOption;
import com.itheima.service.EmpService;
import com.itheima.service.ReportService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

@Service
public class ReportServiceImpl implements ReportService {

    @Autowired
    private EmpMapper empMapper;
    @Autowired
    private StudentMapper studentMapper;
    @Override
    public JobOption getEmpJobData() {
        List<Map<String,Object>> list = empMapper.countEmpJobData();
        List<Object> jobList = list.stream().map(dataMap -> dataMap.get("pos")).toList();
        List<Object> dataList = list.stream().map(dataMap -> dataMap.get("total")).toList();
        return new JobOption(jobList, dataList);
    }

    @Override
    public List<Map> getEmpGenderData() {
        return empMapper.countEmpGenderData();
    }

    @Override
    public List<Map> getStudentDegreeData() {
        return studentMapper.countStudentDegreeData();
    }

    @Override
    public StudentOption studentStudentCountData() {
        StudentOption studentOption = new StudentOption();
        List<StudentCountData> studentCountDataList = studentMapper.studentStudentData();

        List<String> clazzList = new ArrayList<>();
        List<Integer> dataList = new ArrayList<>();

        for (StudentCountData studentCountData : studentCountDataList) {
            clazzList.add(studentCountData.getClazzName());
            dataList.add(studentCountData.getNum());
        }

        studentOption.setClazzList(clazzList);
        studentOption.setDataList(dataList);
        return studentOption;
    }
}
